Which one of the following categories of animals, is correctly described with no single exception in it?

1. All bony fishes have four pairs of gills and an operculum on each side
2. All sponges are marine and have collared cells
3. All mammals are viviparous and possess a diaphragm for breathing
4. All reptiles possess scales, have a three-chambered heart, and are cold blood (poikilothermal)
Subtopic:  Super Class Pisces & its General Characteristics |
 63%
From NCERT
AIPMT - 2012
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Which one of the following pairs of animals is similar to each other pertaining to the feature stated against them?

1. Garden lizard and Crocodile - Three-chambered heart
2. Ascaris and Ancylostoma - Metameric segmentation
3. Sea horse and Flying fish - Cold-blooded (poikilothermal)
4. Pteropus and Ornithorhyncus - Viviparity
Subtopic:  Comparative study of Cartilagenous & Bony Fishes | Super Class Pisces & its General Characteristics |
 67%
From NCERT
AIPMT - 2012
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